void IRDetector_init(void)
{
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOD);
ROM_GPIOPinTypeGPIOOutput(GPIO_PORTD_BASE, GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3);
ROM_GPIOPinWrite(GPIO_PORTD_BASE, GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3, 0x00);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOE);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_ADC0);
ROM_GPIOPinTypeADC(GPIO_PORTE_BASE, GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3);
ROM_ADCHardwareOversampleConfigure(ADC0_BASE, 32);
ROM_ADCSequenceConfigure(ADC0_BASE, 2, ADC_TRIGGER_PROCESSOR, 0);
ROM_ADCSequenceStepConfigure(ADC0_BASE, 2, 0, ADC_CTL_END | ADC_CTL_CH0 | ADC_CTL_IE); //PE3, enable interrupt
ROM_ADCSequenceEnable(ADC0_BASE, 2);
ADCIntRegister(ADC0_BASE, 2, &IR_Detector_ISR);
ROM_ADCIntEnable(ADC0_BASE, 2);
Timer_Init();
ADC_Step = 0;
TURN_ON_IRD1();
ir_Runtimeout(&IR_Timer_Timeout, 1);
}
//*****************************************************************************
//
// This function initializes the ADC hardware in preparation for data
// acquisition.
//
//*****************************************************************************
void
AcquireInit(void)
{
unsigned long ulChan;
//
// Enable the ADC peripherals and the associated GPIO port
//
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_ADC0);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOE);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOP);
ROM_SysCtlADCSpeedSet(SYSCTL_ADCSPEED_125KSPS);
ROM_GPIOPinTypeADC(GPIO_PORTE_BASE, GPIO_PIN_4 | GPIO_PIN_5 | GPIO_PIN_6 |GPIO_PIN_7 | GPIO_PIN_3);
ROM_GPIOPinTypeADC(GPIO_PORTP_BASE, GPIO_PIN_0);
// ROM_ADCReferenceSet(ADC0_BASE, ADC_REF_EXT_3V);
//ROM_ADCR
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOB);
HWREG(GPIO_PORTB_BASE + GPIO_O_AMSEL) |= GPIO_PIN_6;
ADCSequenceDisable(ADC0_BASE,SEQUENCER);
ROM_ADCSequenceConfigure(ADC0_BASE, SEQUENCER, ADC_TRIGGER_TIMER, 0);
for(ulChan = 0; ulChan < 2; ulChan++)
{
unsigned long ulChCtl;
if (ulChan ==1)
{
ROM_ADCSequenceStepConfigure(ADC0_BASE, SEQUENCER, ulChan, ADC_CTL_CH1|ADC_CTL_IE | ADC_CTL_END);
}
else if(ulChan==0)
{
ulChCtl = ADC_CTL_CH0;
ROM_ADCSequenceStepConfigure(ADC0_BASE, SEQUENCER, ulChan, ADC_CTL_CH0);
}
}
ADCHardwareOversampleConfigure(ADC0_BASE, 1);
SysCtlPeripheralEnable(SYSCTL_PERIPH_TIMER0);
//SysCtlPeripheralEnable(SYSCTL_PERIPH_TIMER1);
ROM_TimerConfigure(TIMER0_BASE,TIMER_CFG_32_BIT_PER );
//100 micro
unsigned long freq=SAMPLING_FREQUENCY;
unsigned long period=(2*ROM_SysCtlClockGet()/(freq));
ROM_TimerLoadSet(TIMER0_BASE, TIMER_A,period);
ROM_TimerControlTrigger(TIMER0_BASE, TIMER_A, true);
//ROM_TimerConfigure(TIMER1_BASE, TIMER_CFG_PERIODIC);
//ROM_TimerLoadSet(TIMER1_BASE, TIMER_A, ROM_SysCtlClockGet() /2);
CFAL96x64x16Init();
GrContextInit(&sDisplayContext, &g_sCFAL96x64x16);
sRect1.sXMin = 0;
sRect1.sYMin = 0;
sRect1.sXMax = GrContextDpyWidthGet(&sDisplayContext) - 1;
sRect1.sYMax = 23;
sRect2.sXMin = 0;
sRect2.sYMin = 23;
sRect2.sXMax = GrContextDpyWidthGet(&sDisplayContext) - 1;
sRect2.sYMax = GrContextDpyHeightGet(&sDisplayContext) - 1;
snprintf(text,sizeof(text),"STart");
GrContextForegroundSet(&sDisplayContext, ClrDarkBlue);
GrRectFill(&sDisplayContext, &sRect1);
GrContextForegroundSet(&sDisplayContext, ClrWhite);
//GrRectDraw(&sDisplayContext, &sRect1);
GrContextFontSet(&sDisplayContext, g_pFontCm12);
GrStringDrawCentered(&sDisplayContext,text, -1,
GrContextDpyWidthGet(&sDisplayContext) / 2, 10, 0);
//GrContextForegroundSet(&sDisplayContext, ClrDarkBlue);
//GrRectFill(&sDisplayContext, &sRect1);
//GrContextForegroundSet(&sDisplayContext, ClrWhite);
//GrRectDraw(&sDisplayContext, &sRect1);
/*GrContextForegroundSet(&sDisplayContext, ClrDarkBlue);
GrRectFill(&sDisplayContext, &sRect2);
GrContextForegroundSet(&sDisplayContext, ClrWhite);
GrRectDraw(&sDisplayContext, &sRect2);
*/
compute_filter();
maxi1=0;
maxi2=0;
max1=0;
max2=0;
res=0;
res1=0;
g_ulADCCount=0;
buffer_index=0;
ulLastADCCount=0;
}
void vTempDriverTask() //Code Credit to Tivaware Example temperature_sensor.c
{
uint32_t measurement[1];
uint32_t ui32TempValueC;
ROM_GPIOPinTypeADC(GPIO_PORTD_BASE, GPIO_PIN_0);
ROM_GPIOPinTypeADC(GPIO_PORTD_BASE, GPIO_PIN_1);
ROM_ADCSequenceConfigure(ADC0_BASE, 3, ADC_TRIGGER_PROCESSOR, 0); //D0
ROM_ADCSequenceStepConfigure(ADC0_BASE, 3, 0, ADC_CTL_CH15 | ADC_CTL_IE |
ADC_CTL_END);
ROM_ADCSequenceEnable(ADC0_BASE, 3);
ROM_ADCIntClear(ADC0_BASE, 3);
for(;;)
{
xSemaphoreTake(pollTempSem, portMAX_DELAY);
ROM_ADCProcessorTrigger(ADC0_BASE, 3);
// Wait for conversion to be completed.
while(!ROM_ADCIntStatus(ADC0_BASE, 3, false)) {}
// Clear the ADC interrupt flag.
ROM_ADCIntClear(ADC0_BASE, 3);
// Read ADC Value.
ROM_ADCSequenceDataGet(ADC0_BASE, 3, measurement);
ui32TempValueC = (uint32_t)(log(40960/(29.0*measurement[0]) - 10.0/29) * -1/0.041);
outputBuffer.tempR = ui32TempValueC;
//Switch to other Thermistor
ROM_ADCSequenceDisable(ADC0_BASE, 3);
ROM_ADCSequenceStepConfigure(ADC0_BASE, 3, 0, ADC_CTL_CH14 | ADC_CTL_IE | //D1
ADC_CTL_END);
ROM_ADCSequenceEnable(ADC0_BASE, 3);
//Begin ADC poll
ROM_ADCProcessorTrigger(ADC0_BASE, 3);
// Wait for conversion to be completed.
while(!ROM_ADCIntStatus(ADC0_BASE, 3, false)) {}
// Clear the ADC interrupt flag.
ROM_ADCIntClear(ADC0_BASE, 3);
// Read ADC Value.
ROM_ADCSequenceDataGet(ADC0_BASE, 3, measurement);
ui32TempValueC = (uint32_t)(log(40960/(29.0*measurement[0]) - 10.0/29) * -1/0.041);
outputBuffer.tempL = ui32TempValueC;
ROM_ADCSequenceDisable(ADC0_BASE, 3);
ROM_ADCSequenceStepConfigure(ADC0_BASE, 3, 0, ADC_CTL_CH15 | ADC_CTL_IE |
ADC_CTL_END);
ROM_ADCSequenceEnable(ADC0_BASE, 3);
}
}
